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chore: formatting

This commit is contained in:
OlivierDehaene 2023-12-11 14:49:52 +01:00
parent 3a521c92b3
commit 72ee382ded
36 changed files with 715 additions and 450 deletions
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13
integration-tests/conftest.py
View File

@ -25,6 +25,7 @@ DOCKER_VOLUME = os.getenv("DOCKER_VOLUME", "/data")
class ResponseComparator(JSONSnapshotExtension):
rtol = 0.2
def serialize(
self,
data,
@ -69,7 +70,9 @@ class ResponseComparator(JSONSnapshotExtension):
prefill_token.id == other.id
and prefill_token.text == other.text
and (
math.isclose(prefill_token.logprob, other.logprob, rel_tol=self.rtol)
math.isclose(
prefill_token.logprob, other.logprob, rel_tol=self.rtol
)
if prefill_token.logprob is not None
else prefill_token.logprob == other.logprob
)
@ -153,6 +156,7 @@ class GenerousResponseComparator(ResponseComparator):
# Needed for GPTQ with exllama which has serious numerical fluctuations.
rtol = 0.75
class LauncherHandle:
def __init__(self, port: int):
self.client = AsyncClient(f"http://localhost:{port}")
@ -198,6 +202,7 @@ class ProcessLauncherHandle(LauncherHandle):
def response_snapshot(snapshot):
return snapshot.use_extension(ResponseComparator)
@pytest.fixture
def generous_response_snapshot(snapshot):
return snapshot.use_extension(GenerousResponseComparator)
@ -219,7 +224,7 @@ def launcher(event_loop):
quantize: Optional[str] = None,
trust_remote_code: bool = False,
use_flash_attention: bool = True,
dtype: Optional[str] = None
dtype: Optional[str] = None,
):
port = random.randint(8000, 10_000)
master_port = random.randint(10_000, 20_000)
@ -282,7 +287,7 @@ def launcher(event_loop):
quantize: Optional[str] = None,
trust_remote_code: bool = False,
use_flash_attention: bool = True,
dtype: Optional[str] = None
dtype: Optional[str] = None,
):
port = random.randint(8000, 10_000)
@ -335,7 +340,7 @@ def launcher(event_loop):
],
volumes=volumes,
ports={"80/tcp": port},
shm_size="1G"
shm_size="1G",
)
yield ContainerLauncherHandle(client, container.name, port)

12
integration-tests/models/test_flash_medusa.py
View File

@ -50,10 +50,16 @@ async def test_flash_medusa_all_params(flash_medusa, response_snapshot):
@pytest.mark.asyncio
@pytest.mark.private
async def test_flash_medusa_load(flash_medusa, generate_load, response_snapshot):
responses = await generate_load(flash_medusa, "What is Deep Learning?", max_new_tokens=10, n=4)
responses = await generate_load(
flash_medusa, "What is Deep Learning?", max_new_tokens=10, n=4
)
assert len(responses) == 4
assert all([r.generated_text == responses[0].generated_text for r in responses]), f"{[r.generated_text for r in responses]}"
assert responses[0].generated_text == '\nDeep learning is a subset of machine learning'
assert all(
[r.generated_text == responses[0].generated_text for r in responses]
), f"{[r.generated_text for r in responses]}"
assert (
responses[0].generated_text == "\nDeep learning is a subset of machine learning"
)
assert responses == response_snapshot

4
integration-tests/models/test_flash_mistral.py
View File

@ -56,7 +56,9 @@ async def test_flash_mistral_load(flash_mistral, generate_load, response_snapsho
)
assert len(responses) == 4
assert all([r.generated_text == responses[0].generated_text for r in responses]), f"{[r.generated_text for r in responses]}"
assert all(
[r.generated_text == responses[0].generated_text for r in responses]
), f"{[r.generated_text for r in responses]}"
assert responses[0].generated_text == ": Let n = 10 - 1"
assert responses == response_snapshot

4
integration-tests/models/test_idefics.py
View File

@ -3,7 +3,9 @@ import pytest
@pytest.fixture(scope="module")
def idefics_handle(launcher):
with launcher("HuggingFaceM4/idefics-9b-instruct", num_shard=2, dtype="float16") as handle:
with launcher(
"HuggingFaceM4/idefics-9b-instruct", num_shard=2, dtype="float16"
) as handle:
yield handle

16
server/tests/models/test_bloom.py
View File

@ -133,8 +133,20 @@ def test_causal_lm_generate_token(default_bloom, default_bloom_batch):
)
assert all([generation.generated_text is None for generation in generations])
assert all([len(generation.prefill_tokens) == 1 for generation in generations])
assert all([token_id.item() == 10264 for generation in generations for token_id in generation.tokens.token_ids])
assert all([token_text == "Test" for generation in generations for token_text in generation.tokens.texts])
assert all(
[
token_id.item() == 10264
for generation in generations
for token_id in generation.tokens.token_ids
]
)
assert all(
[
token_text == "Test"
for generation in generations
for token_text in generation.tokens.texts
]
)
assert generations[0].request_id == 0

16
server/tests/models/test_causal_lm.py
View File

@ -129,8 +129,20 @@ def test_causal_lm_generate_token(default_causal_lm, default_causal_lm_batch):
)
assert all([generation.generated_text is None for generation in generations])
assert all([len(generation.prefill_tokens) == 1 for generation in generations])
assert all([token_id.item() == 13 for generation in generations for token_id in generation.tokens.token_ids])
assert all([token_text == "." for generation in generations for token_text in generation.tokens.texts])
assert all(
[
token_id.item() == 13
for generation in generations
for token_id in generation.tokens.token_ids
]
)
assert all(
[
token_text == "."
for generation in generations
for token_text in generation.tokens.texts
]
)
assert generations[0].request_id == 0

16
server/tests/models/test_seq2seq_lm.py
View File

@ -151,8 +151,20 @@ def test_seq2seq_lm_generate_token(default_seq2seq_lm, default_seq2seq_lm_batch)
)
assert all([generation.generated_text is None for generation in generations])
assert all([len(generation.prefill_tokens) == 1 for generation in generations])
assert all([token_id.item() == 259 for generation in generations for token_id in generation.tokens.token_ids])
assert all([token_text == " " for generation in generations for token_text in generation.tokens.texts])
assert all(
[
token_id.item() == 259
for generation in generations
for token_id in generation.tokens.token_ids
]
)
assert all(
[
token_text == " "
for generation in generations
for token_text in generation.tokens.texts
]
)
assert generations[0].request_id == 0

36
server/text_generation_server/cli.py
View File

@ -77,12 +77,24 @@ def serve(
# Downgrade enum into str for easier management later on
quantize = None if quantize is None else quantize.value
dtype = None if dtype is None else dtype.value
if dtype is not None and quantize not in {None, "bitsandbytes", "bitsandbytes-nf4", "bitsandbytes-fp4"}:
if dtype is not None and quantize not in {
None,
"bitsandbytes",
"bitsandbytes-nf4",
"bitsandbytes-fp4",
}:
raise RuntimeError(
"Only 1 can be set between `dtype` and `quantize`, as they both decide how goes the final model."
)
server.serve(
model_id, revision, sharded, quantize, speculate, dtype, trust_remote_code, uds_path
model_id,
revision,
sharded,
quantize,
speculate,
dtype,
trust_remote_code,
uds_path,
)
@ -140,12 +152,17 @@ def download_weights(
try:
import json
medusa_head = hf_hub_download(model_id, revision=revision, filename="medusa_lm_head.pt")
medusa_head = hf_hub_download(
model_id, revision=revision, filename="medusa_lm_head.pt"
)
if auto_convert:
medusa_sf = Path(medusa_head[: -len(".pt")] + ".safetensors")
if not medusa_sf.exists():
utils.convert_files([Path(medusa_head)], [medusa_sf], [])
medusa_config = hf_hub_download(model_id, revision=revision, filename="config.json")
medusa_config = hf_hub_download(
model_id, revision=revision, filename="config.json"
)
with open(medusa_config, "r") as f:
config = json.load(f)
@ -153,10 +170,17 @@ def download_weights(
revision = "main"
try:
utils.weight_files(model_id, revision, extension)
logger.info(f"Files for parent {model_id} are already present on the host. " "Skipping download.")
logger.info(
f"Files for parent {model_id} are already present on the host. "
"Skipping download."
)
return
# Local files not found
except (utils.LocalEntryNotFoundError, FileNotFoundError, utils.EntryNotFoundError):
except (
utils.LocalEntryNotFoundError,
FileNotFoundError,
utils.EntryNotFoundError,
):
pass
except (utils.LocalEntryNotFoundError, utils.EntryNotFoundError):
pass

13
server/text_generation_server/models/__init__.py
View File

@ -88,7 +88,6 @@ if MIXTRAL:
__all__.append(FlashMixtral)
def get_model(
model_id: str,
revision: Optional[str],
@ -157,7 +156,9 @@ def get_model(
speculate_medusa = config_dict["medusa_num_heads"]
if speculate is not None:
if speculate > speculate_medusa:
raise RuntimeError("Speculate is set to `{speculate}` but this medusa models only has `{speculate_medusa}` heads, please make them match")
raise RuntimeError(
"Speculate is set to `{speculate}` but this medusa models only has `{speculate_medusa}` heads, please make them match"
)
else:
set_speculate(speculate)
else:
@ -249,7 +250,7 @@ def get_model(
quantize=quantize,
dtype=dtype,
trust_remote_code=trust_remote_code,
use_medusa=use_medusa
use_medusa=use_medusa,
)
elif sharded:
raise NotImplementedError(FLASH_ATT_ERROR_MESSAGE.format("Sharded Llama"))
@ -313,7 +314,9 @@ def get_model(
dtype=dtype,
trust_remote_code=trust_remote_code,
)
raise NotImplementedError("Mixtral models requires flash attention v2, stk and megablocks")
raise NotImplementedError(
"Mixtral models requires flash attention v2, stk and megablocks"
)
if model_type == "opt":
return OPTSharded(
@ -354,7 +357,7 @@ def get_model(
raise ValueError("awq quantization is not supported for AutoModel")
elif (quantize == "bitsandbytes-fp4") or (quantize == "bitsandbytes-nf4"):
raise ValueError("4bit quantization is not supported for AutoModel")
elif (quantize == "eetq"):
elif quantize == "eetq":
raise ValueError("Eetq quantization is not supported for AutoModel")
if model_type in modeling_auto.MODEL_FOR_CAUSAL_LM_MAPPING_NAMES:
return CausalLM(

6
server/text_generation_server/models/bloom.py
View File

@ -74,7 +74,11 @@ class BLOOMSharded(CausalLM):
torch.distributed.barrier(group=self.process_group)
filenames = weight_files(model_id, revision=revision, extension=".safetensors")
weights = Weights(
filenames, device=device, dtype=dtype, process_group=self.process_group, prefix="transformer",
filenames,
device=device,
dtype=dtype,
process_group=self.process_group,
prefix="transformer",
)
if config.quantize == "gptq":
weights._set_gptq_params(model_id)

11
server/text_generation_server/models/causal_lm.py
View File

@ -510,7 +510,11 @@ class CausalLM(Model):
load_in_8bit=quantize == "bitsandbytes",
trust_remote_code=trust_remote_code,
)
if torch.cuda.is_available() and torch.cuda.device_count() == 1 and quantize != "bitsandbytes":
if (
torch.cuda.is_available()
and torch.cuda.device_count() == 1
and quantize != "bitsandbytes"
):
model = model.cuda()
if tokenizer.pad_token_id is None:
@ -676,7 +680,10 @@ class CausalLM(Model):
skip_special_tokens=False,
)
prefill_tokens = Tokens(
prefill_token_ids, prefill_logprobs, prefill_texts, is_special=[]
prefill_token_ids,
prefill_logprobs,
prefill_texts,
is_special=[],
)
else:
prefill_tokens = None

7
server/text_generation_server/models/custom_modeling/flash_llama_modeling.py
View File

@ -34,9 +34,10 @@ from text_generation_server.utils.layers import (
PositionRotaryEmbedding,
TensorParallelHead,
get_linear,
FastRMSNorm
FastRMSNorm,
)
class LlamaConfig(PretrainedConfig):
def __init__(
self,
@ -288,7 +289,9 @@ class FlashLlamaLayer(nn.Module):
)
self.mlp = LlamaMLP(prefix=f"{prefix}.mlp", config=config, weights=weights)
self.input_layernorm = FastRMSNorm.load(prefix=f"{prefix}.input_layernorm", weights=weights, eps=config.rms_norm_eps)
self.input_layernorm = FastRMSNorm.load(
prefix=f"{prefix}.input_layernorm", weights=weights, eps=config.rms_norm_eps
)
self.post_attention_layernorm = FastRMSNorm.load(
prefix=f"{prefix}.post_attention_layernorm",
weights=weights,

9
server/text_generation_server/models/custom_modeling/flash_mistral_modeling.py
View File

@ -27,7 +27,11 @@ from transformers.configuration_utils import PretrainedConfig
from typing import Optional, List, Tuple
from text_generation_server.utils import paged_attention, flash_attn
from text_generation_server.utils.flash_attn import attention, HAS_FLASH_ATTN_V2_ROCM, HAS_FLASH_ATTN_V2_CUDA
from text_generation_server.utils.flash_attn import (
attention,
HAS_FLASH_ATTN_V2_ROCM,
HAS_FLASH_ATTN_V2_CUDA,
)
from text_generation_server.utils.layers import (
TensorParallelRowLinear,
TensorParallelColumnLinear,
@ -35,7 +39,7 @@ from text_generation_server.utils.layers import (
PositionRotaryEmbedding,
TensorParallelHead,
get_linear,
FastRMSNorm
FastRMSNorm,
)
@ -96,6 +100,7 @@ class MistralConfig(PretrainedConfig):
**kwargs,
)
def load_attention(config, prefix, weights):
if config.num_attention_heads != config.num_key_value_heads:
return _load_gqa(config, prefix, weights)

34
server/text_generation_server/models/custom_modeling/flash_mixtral_modeling.py
View File

@ -29,7 +29,10 @@ from transformers.configuration_utils import PretrainedConfig
from typing import Optional, List, Tuple
from text_generation_server.utils import paged_attention, flash_attn
from text_generation_server.utils.flash_attn import HAS_FLASH_ATTN_V2_ROCM, HAS_FLASH_ATTN_V2_CUDA
from text_generation_server.utils.flash_attn import (
HAS_FLASH_ATTN_V2_ROCM,
HAS_FLASH_ATTN_V2_CUDA,
)
from text_generation_server.utils.layers import (
FastLinear,
FastRMSNorm,
@ -173,9 +176,11 @@ def _load_experts(config, prefix, mat, weights):
start = rank * block_size
stop = (rank + 1) * block_size
tensor = torch.empty((config.num_local_experts * block_size, config.hidden_size),
tensor = torch.empty(
(config.num_local_experts * block_size, config.hidden_size),
dtype=weights.dtype,
device=weights.device)
device=weights.device,
)
for i in range(config.num_local_experts):
slice_ = weights._get_slice(f"{prefix}.{i}.{mat}.weight")
@ -184,7 +189,9 @@ def _load_experts(config, prefix, mat, weights):
expert_slice = slice_[:, start:stop].t().contiguous()
else:
expert_slice = slice_[start:stop]
tensor[i * block_size:(i + 1) * block_size] = expert_slice.to(dtype=weights.dtype).to(device=weights.device)
tensor[i * block_size : (i + 1) * block_size] = expert_slice.to(
dtype=weights.dtype
).to(device=weights.device)
return tensor
@ -399,8 +406,9 @@ class BlockSparseMoE(nn.Module):
# Indices for the sparse matrix. The indices for
# the intermediate matrix are dynamic depending
# on the mapping of tokens to experts.
column_indices = ops.topology(padded_bins, self.blocking, block_rows,
blocks_per_row)
column_indices = ops.topology(
padded_bins, self.blocking, block_rows, blocks_per_row
)
# For now, use meta init to save the device memory.
data = torch.empty(
@ -444,8 +452,7 @@ class BlockSparseMoE(nn.Module):
# position of each bin.
# List of size num_experts
padded_tokens_per_expert = round_up(tokens_per_expert,
self.blocking)
padded_tokens_per_expert = round_up(tokens_per_expert, self.blocking)
# padded_tokens_per_expert => [128, O, 128, ...]
# Cumulative selected experts per token
@ -484,8 +491,7 @@ class BlockSparseMoE(nn.Module):
# Permute tokens and pad to prepare expert computation
# (top_k * sequence_length + padding, model_dim)
x = ops.padded_gather(x, indices, bin_ids, bins, padded_bins,
self.top_k)
x = ops.padded_gather(x, indices, bin_ids, bins, padded_bins, self.top_k)
# Create the sparse matrix topology
with torch.no_grad():
@ -496,8 +502,8 @@ class BlockSparseMoE(nn.Module):
# (top_k * sequence_length + padding, ffn_dim * n_experts)
x = stk.Matrix(
topo.size(),
self.act(stk.ops.sdd(x, self.w1, topo).data) *
stk.ops.sdd(x, self.w3, topo).data,
self.act(stk.ops.sdd(x, self.w1, topo).data)
* stk.ops.sdd(x, self.w3, topo).data,
topo.row_indices,
topo.column_indices,
topo.offsets,
@ -537,7 +543,9 @@ class MixtralLayer(nn.Module):
self.self_attn = MixtralAttention(
prefix=f"{prefix}.self_attn", config=config, weights=weights
)
self.block_sparse_moe = BlockSparseMoE(f"{prefix}.block_sparse_moe", config, weights)
self.block_sparse_moe = BlockSparseMoE(
f"{prefix}.block_sparse_moe", config, weights
)
self.input_layernorm = FastRMSNorm.load(
prefix=f"{prefix}.input_layernorm", weights=weights, eps=config.rms_norm_eps

4
server/text_generation_server/models/custom_modeling/idefics_image_processing.py
View File

@ -198,7 +198,9 @@ class IdeficsImageProcessor(BaseImageProcessor):
image = image_url_or_urls
if image.startswith("http://") or image.startswith("https://"):
response = requests.get(image_url_or_urls, stream=True, headers=headers, timeout=(1, 5))
response = requests.get(
image_url_or_urls, stream=True, headers=headers, timeout=(1, 5)
)
response.raise_for_status()
content = response.content
elif image.startswith("data:"):

12
server/text_generation_server/models/custom_modeling/idefics_modeling.py
View File

@ -62,6 +62,7 @@ if IS_CUDA_SYSTEM:
elif IS_ROCM_SYSTEM:
from vllm import layernorm_ops
@dataclass
class BaseModelOutputWithPastImage(BaseModelOutputWithPast):
image_hidden_states: Optional[torch.FloatTensor] = None
@ -431,7 +432,9 @@ class IdeficsRMSNorm(nn.Module):
return out
else:
raise ValueError("Your system seem to be not supported. Please check your install or open an issue at https://github.com/huggingface/text-generation-inference/issues with a clear reproduction.")
raise ValueError(
"Your system seem to be not supported. Please check your install or open an issue at https://github.com/huggingface/text-generation-inference/issues with a clear reproduction."
)
# this was adapted from LlamaMLP
@ -613,7 +616,12 @@ class IdeficsAttention(nn.Module):
query_shape = query_states.shape
key_shape = key_states.shape
self.rotary_emb(query_states.view(-1, *query_shape[2:]), key_states.reshape(-1, *key_shape[2:]), cos, sin)
self.rotary_emb(
query_states.view(-1, *query_shape[2:]),
key_states.reshape(-1, *key_shape[2:]),
cos,
sin,
)
query_states = query_states.view(query_shape)
key_states = key_states.view(key_shape)

2
server/text_generation_server/models/custom_modeling/idefics_processing.py
View File

@ -112,6 +112,7 @@ def is_url(string):
result = urlparse(string)
return all([result.scheme, result.netloc])
def is_image(string):
"""Checks if the passed string contains a valid url and nothing else. e.g. if space is included it's immediately
invalidated the url"""
@ -344,7 +345,6 @@ class IdeficsProcessor(ProcessorMixin):
image_objects = self.image_processor(image_objects, transform=transform)
text_encoding = self.tokenizer(
text=full_text,
add_special_tokens=False,

82
server/text_generation_server/models/flash_causal_lm.py
View File

@ -165,8 +165,6 @@ class FlashCausalLMBatch(Batch):
input_length = len(tokenized_input)
input_lengths.append(input_length)
prefix_offsets.append(input_length - 5)
read_offsets.append(input_length)
@ -229,7 +227,9 @@ class FlashCausalLMBatch(Batch):
cumulative_max_length += total_tokens
max_seqlen = max(max_seqlen, input_length)
max_blocks = max(max_blocks, needed_blocks)
max_length = max(max_length, input_length + max_new_tokens + speculative_length)
max_length = max(
max_length, input_length + max_new_tokens + speculative_length
)
next_token_chooser = HeterogeneousNextTokenChooser.from_pb(
next_token_chooser_parameters, dtype, device
@ -424,7 +424,9 @@ class FlashCausalLMBatch(Batch):
slots = self.slots[slot_filtering_indices]
next_token_chooser = self.next_token_chooser.filter(indices)
top_n_tokens_tensor = self.top_n_tokens_tensor[indices]
speculative_ids = self.speculative_ids[indices] if self.speculative_ids is not None else None
speculative_ids = (
self.speculative_ids[indices] if self.speculative_ids is not None else None
)
start_slots = torch.tensor(start_slots, dtype=torch.int64)
@ -480,7 +482,9 @@ class FlashCausalLMBatch(Batch):
total_batch_size += len(b)
total_slots += len(b.slots)
blocks += b.blocks
speculative_length = b.speculative_ids.shape[1] if b.speculative_ids is not None else 0
speculative_length = (
b.speculative_ids.shape[1] if b.speculative_ids is not None else 0
)
max_blocks = max(max_blocks, b.max_blocks)
max_seqlen = max(max_seqlen, b.max_seqlen)
max_length = max(
@ -586,7 +590,11 @@ class FlashCausalLMBatch(Batch):
device=batches[0].next_token_chooser.device,
)
speculative_ids = torch.cat([b.speculative_ids for b in batches], dim=0) if batches[0].speculative_ids is not None else None
speculative_ids = (
torch.cat([b.speculative_ids for b in batches], dim=0)
if batches[0].speculative_ids is not None
else None
)
# Needed to avoid dropping blocks when the batches will go out of scope
for b in batches:
@ -622,7 +630,7 @@ class FlashCausalLMBatch(Batch):
top_n_tokens_tensor=top_n_tokens_tensor,
blocks=blocks,
max_blocks=max_blocks,
speculative_ids=speculative_ids
speculative_ids=speculative_ids,
)
def __del__(self):
@ -741,15 +749,26 @@ class FlashCausalLM(Model):
B, speculative_length = speculative_ids.shape
new_length = speculative_length + 1
new_input_ids = torch.cat([input_ids.unsqueeze(-1), speculative_ids], dim=1).reshape(-1)
new_input_ids = torch.cat(
[input_ids.unsqueeze(-1), speculative_ids], dim=1
).reshape(-1)
arange = torch.arange(new_length, device=position_ids.device).unsqueeze(0)
arange_int = arange.to(dtype=torch.int32)
new_position_ids = (position_ids.unsqueeze(-1).expand(B, new_length) + arange).view(-1)
new_position_ids = (
position_ids.unsqueeze(-1).expand(B, new_length) + arange
).view(-1)
slots = (slots.unsqueeze(-1).expand(B, new_length) + arange_int).view(-1)
input_lengths = (input_lengths.unsqueeze(-1).expand(B, new_length) + arange_int).view(-1)
input_lengths = (
input_lengths.unsqueeze(-1).expand(B, new_length) + arange_int
).view(-1)
# Add Copy the block tables for all members
block_tables = block_tables.unsqueeze(1).expand(B, new_length, -1).reshape(B* new_length, -1).contiguous()
block_tables = (
block_tables.unsqueeze(1)
.expand(B, new_length, -1)
.reshape(B * new_length, -1)
.contiguous()
)
max_s = max_s + speculative_length
input_ids = new_input_ids
@ -808,20 +827,31 @@ class FlashCausalLM(Model):
else:
speculative_logits = None
if prefill:
next_token_logits = (
out[batch.prefill_next_token_indices] if prefill_logprobs else out
)
if speculative_logits is not None:
speculative_logits = (
speculative_logits[batch.prefill_next_token_indices] if prefill_logprobs else speculative_logits
speculative_logits[batch.prefill_next_token_indices]
if prefill_logprobs
else speculative_logits
)
else:
next_token_logits = out
next_input_ids, next_token_logprobs, logprobs, accepted_ids, speculative_ids = batch.next_token_chooser(
batch.all_input_ids_tensor[:, : batch.max_seqlen], next_token_logits, get_speculate(), batch.speculative_ids, speculative_logits
(
next_input_ids,
next_token_logprobs,
logprobs,
accepted_ids,
speculative_ids,
) = batch.next_token_chooser(
batch.all_input_ids_tensor[:, : batch.max_seqlen],
next_token_logits,
get_speculate(),
batch.speculative_ids,
speculative_logits,
)
batch_top_token_ids, batch_top_token_logprobs = batch_top_tokens(
@ -851,11 +881,7 @@ class FlashCausalLM(Model):
stopped = True
# Zipped iterator
iterator = zip(
batch.input_lengths,
batch.all_input_ids,
accepted_ids
)
iterator = zip(batch.input_lengths, batch.all_input_ids, accepted_ids)
# We do two for loops as the first one can run completely asynchronously from the GPU while for the second
# one, we need to first do a GPU <-> CPU sync
@ -863,11 +889,7 @@ class FlashCausalLM(Model):
# For each member of the batch
index = 0
for i, (
input_length,
all_input_ids,
n_accepted_ids
) in enumerate(iterator):
for i, (input_length, all_input_ids, n_accepted_ids) in enumerate(iterator):
# Indexing metadata
start_index = cumulative_length
end_index = cumulative_length + input_length
@ -901,7 +923,6 @@ class FlashCausalLM(Model):
cumulative_length += input_length
batch.input_ids = next_input_ids[accepted_ids.cumsum(dim=-1) - 1]
batch.speculative_ids = speculative_ids
batch.position_ids = next_position_ids + accepted_ids
@ -984,7 +1005,9 @@ class FlashCausalLM(Model):
stopped = stopped and current_stopped
_next_token_ids = next_token_ids[index : index + n_accepted_ids - left]
_next_token_logprobs = next_token_logprobs[index: index+n_accepted_ids - left]
_next_token_logprobs = next_token_logprobs[
index : index + n_accepted_ids - left
]
index += n_accepted_ids
# Shard generations
@ -1027,7 +1050,10 @@ class FlashCausalLM(Model):
)
prefill_tokens = Tokens(
prefill_token_ids, request_prefill_logprobs, prefill_texts, is_special = []
prefill_token_ids,
request_prefill_logprobs,
prefill_texts,
is_special=[],
)
else:
prefill_tokens = None

13
server/text_generation_server/models/flash_llama.py
View File

@ -71,12 +71,19 @@ class FlashLlama(FlashCausalLM):
from text_generation_server.utils.medusa import MedusaModel
from huggingface_hub import hf_hub_download
import json
medusa_config = hf_hub_download(use_medusa, revision=revision, filename="config.json")
medusa_config = hf_hub_download(
use_medusa, revision=revision, filename="config.json"
)
with open(medusa_config, "r") as f:
config = json.load(f)
medusa_head = hf_hub_download(use_medusa, revision=revision, filename="medusa_lm_head.pt")
medusa_head = hf_hub_download(
use_medusa, revision=revision, filename="medusa_lm_head.pt"
)
medusa_sf = medusa_head[: -len(".pt")] + ".safetensors"
weights = Weights([medusa_sf], device, dtype, process_group=self.process_group)
weights = Weights(
[medusa_sf], device, dtype, process_group=self.process_group
)
lm_head = model.lm_head
model.lm_head = MedusaModel(config, weights, lm_head)

27
server/text_generation_server/models/flash_mistral.py
View File

@ -184,7 +184,9 @@ class FlashMistralBatch(FlashCausalLMBatch):
cumulative_max_length += total_tokens
max_seqlen = max(max_seqlen, input_length)
max_blocks = max(max_blocks, needed_blocks)
max_length = max(max_length, input_length + max_new_tokens + speculative_length)
max_length = max(
max_length, input_length + max_new_tokens + speculative_length
)
next_token_chooser = HeterogeneousNextTokenChooser.from_pb(
next_token_chooser_parameters, dtype, device
@ -273,7 +275,7 @@ class FlashMistralBatch(FlashCausalLMBatch):
blocks=blocks,
max_blocks=max_blocks,
prefill_cache_indices=prefill_cache_indices,
speculative_ids=None
speculative_ids=None,
)
@ -359,15 +361,26 @@ class BaseFlashMistral(FlashCausalLM):
B, speculative_length = speculative_ids.shape
new_length = speculative_length + 1
new_input_ids = torch.cat([input_ids.unsqueeze(-1), speculative_ids], dim=1).reshape(-1)
new_input_ids = torch.cat(
[input_ids.unsqueeze(-1), speculative_ids], dim=1
).reshape(-1)
arange = torch.arange(new_length, device=position_ids.device).unsqueeze(0)
arange_int = arange.to(dtype=torch.int32)
new_position_ids = (position_ids.unsqueeze(-1).expand(B, new_length) + arange).view(-1)
new_position_ids = (
position_ids.unsqueeze(-1).expand(B, new_length) + arange
).view(-1)
slots = (slots.unsqueeze(-1).expand(B, new_length) + arange_int).view(-1)
input_lengths = (input_lengths.unsqueeze(-1).expand(B, new_length) + arange_int).view(-1)
input_lengths = (
input_lengths.unsqueeze(-1).expand(B, new_length) + arange_int
).view(-1)
# Add Copy the block tables for all members
block_tables = block_tables.unsqueeze(1).expand(B, new_length, -1).reshape(B* new_length, -1).contiguous()
block_tables = (
block_tables.unsqueeze(1)
.expand(B, new_length, -1)
.reshape(B * new_length, -1)
.contiguous()
)
max_s = max_s + speculative_length
input_ids = new_input_ids
@ -415,5 +428,5 @@ class FlashMistral(BaseFlashMistral):
revision=revision,
quantize=quantize,
dtype=dtype,
trust_remote_code=trust_remote_code
trust_remote_code=trust_remote_code,
)

7
server/text_generation_server/models/flash_mixtral.py
View File

@ -3,7 +3,10 @@ import torch
from typing import Optional
from text_generation_server.models.flash_mistral import BaseFlashMistral
from text_generation_server.models.custom_modeling.flash_mixtral_modeling import MixtralConfig, FlashMixtralForCausalLM
from text_generation_server.models.custom_modeling.flash_mixtral_modeling import (
MixtralConfig,
FlashMixtralForCausalLM,
)
class FlashMixtral(BaseFlashMistral):
@ -22,5 +25,5 @@ class FlashMixtral(BaseFlashMistral):
revision=revision,
quantize=quantize,
dtype=dtype,
trust_remote_code=trust_remote_code
trust_remote_code=trust_remote_code,
)

5
server/text_generation_server/models/idefics_causal_lm.py
View File

@ -792,7 +792,10 @@ class IdeficsCausalLM(Model):
skip_special_tokens=False,
)
prefill_tokens = Tokens(
prefill_token_ids, prefill_logprobs, prefill_texts, is_special=[]
prefill_token_ids,
prefill_logprobs,
prefill_texts,
is_special=[],
)
else:
prefill_tokens = None

2
server/text_generation_server/models/model.py
View File

@ -56,7 +56,7 @@ class Model(ABC):
dtype=str(self.dtype),
device_type=self.device.type,
window_size=self.sliding_window,
speculate=self.speculate
speculate=self.speculate,
)
@property

2
server/text_generation_server/models/seq2seq_lm.py
View File

@ -736,7 +736,7 @@ class Seq2SeqLM(Model):
[self.tokenizer.bos_token_id],
[float("nan")],
[self.tokenizer.bos_token],
[False]
[False],
)
else:
prefill_tokens = None

5
server/text_generation_server/models/types.py
View File

@ -66,7 +66,10 @@ class Tokens:
def to_pb(self) -> generate_pb2.Tokens:
return generate_pb2.Tokens(
ids=self.token_ids, logprobs=self.logprobs, texts=self.texts, is_special=self.is_special
ids=self.token_ids,
logprobs=self.logprobs,
texts=self.texts,
is_special=self.is_special,
)
def __len__(self):

12
server/text_generation_server/server.py
View File

@ -159,7 +159,13 @@ def serve(
try:
model = get_model(
model_id, revision, sharded, quantize, speculate, dtype, trust_remote_code
model_id,
revision,
sharded,
quantize,
speculate,
dtype,
trust_remote_code,
)
except Exception:
logger.exception("Error when initializing model")
@ -207,5 +213,7 @@ def serve(
await server.stop(0)
asyncio.run(
serve_inner(model_id, revision, sharded, quantize, speculate, dtype, trust_remote_code)
serve_inner(
model_id, revision, sharded, quantize, speculate, dtype, trust_remote_code
)
)

8
server/text_generation_server/utils/flash_attn.py
View File

@ -51,7 +51,9 @@ except ImportError as e:
) from e
elif IS_ROCM_SYSTEM:
for idx in range(torch.cuda.device_count()):
if "MI210" not in torch.cuda.get_device_name(idx) and "MI250" not in torch.cuda.get_device_name(idx):
if "MI210" not in torch.cuda.get_device_name(
idx
) and "MI250" not in torch.cuda.get_device_name(idx):
raise ImportError(
f"AMD GPU {torch.cuda.get_device_name(idx)} does not support flash-attention"
)
@ -91,7 +93,9 @@ def attention(
)
elif HAS_FLASH_ATTN_V2_ROCM:
if window_size_left != -1:
raise ValueError(f"RoCm version of Flash Attention v2 does not support window attention (window_size_left != -1, got window_size_left={window_size_left}).")
raise ValueError(
f"RoCm version of Flash Attention v2 does not support window attention (window_size_left != -1, got window_size_left={window_size_left})."
)
# RoCm flash API does not take the window_size_left and window_size_right arguments.
return flash_attn_2_cuda.varlen_fwd(

50
server/text_generation_server/utils/gptq/exllamav2.py
View File

@ -11,12 +11,13 @@ logger = getLogger(__name__)
try:
from exllamav2_kernels import make_q_matrix, gemm_half_q_half
except ImportError:
logger.error('exllamav2_kernels not installed.')
logger.error("exllamav2_kernels not installed.")
raise
# Dummy tensor to pass instead of g_idx since there is no way to pass "None" to a C++ extension
none_tensor = torch.empty((1, 1), device="meta")
def ext_gemm_half_q_half(x, q_handle, q4_width, force_cuda):
"""Matrix multiplication, returns x @ q4"""
output_shape = x.shape[:-1] + (q4_width,)
@ -25,6 +26,7 @@ def ext_gemm_half_q_half(x, q_handle, q4_width, force_cuda):
gemm_half_q_half(x, q_handle, output, force_cuda)
return output.view(output_shape)
def ext_make_q_matrix(w: dict, temp_dq, key: str = None):
"""
Create Q matrix
@ -35,7 +37,8 @@ def ext_make_q_matrix(w: dict, temp_dq, key: str = None):
w["q_scale_max"] /= 256
w["q_perm"] = w["q_perm"].short()
w["q_invperm"] = w["q_invperm"].short()
return make_q_matrix(w["q_weight"],
return make_q_matrix(
w["q_weight"],
w["q_perm"],
w["q_invperm"],
w["q_scale"],
@ -44,7 +47,8 @@ def ext_make_q_matrix(w: dict, temp_dq, key: str = None):
none_tensor,
none_tensor,
none_tensor,
temp_dq)
temp_dq,
)
# GPTQ
elif "qweight" in w:
if w["scales"].dtype == torch.float:
@ -52,10 +56,15 @@ def ext_make_q_matrix(w: dict, temp_dq, key: str = None):
# GPTQ with g_idx (act_order)
if w.get("g_idx", None) is not None and not (w["g_idx"] == 0).all().item():
w["q_perm"] = torch.empty((w["qweight"].shape[0] * 8,), dtype = torch.short, device = w["qweight"].device)
w["q_perm"] = torch.empty(
(w["qweight"].shape[0] * 8,),
dtype=torch.short,
device=w["qweight"].device,
)
w["q_invperm"] = torch.empty_like(w["q_perm"])
# make_q4 segfaults if g_idx is not on cpu in the act-order case. In the non act-order case, None needs to be passed for g_idx.
return make_q_matrix(w["qweight"],
return make_q_matrix(
w["qweight"],
w["q_perm"],
w["q_invperm"],
none_tensor,
@ -64,10 +73,12 @@ def ext_make_q_matrix(w: dict, temp_dq, key: str = None):
w["qzeros"],
w["scales"],
w["g_idx"].cpu(),
temp_dq)
temp_dq,
)
# GPTQ without g_idx
else:
return make_q_matrix(w["qweight"],
return make_q_matrix(
w["qweight"],
none_tensor,
none_tensor,
none_tensor,
@ -76,7 +87,9 @@ def ext_make_q_matrix(w: dict, temp_dq, key: str = None):
w["qzeros"],
w["scales"],
none_tensor,
temp_dq)
temp_dq,
)
DEVICE = None
FIXED_BYTES = 0
@ -106,7 +119,8 @@ class QuantLinear(nn.Module):
super().__init__()
if bits != 4:
raise ValueError(
f"Exllamav2 kernel supports only bits=4, requested bits={bits}. Something is wrong in the model initialization.")
f"Exllamav2 kernel supports only bits=4, requested bits={bits}. Something is wrong in the model initialization."
)
self.q_handle = None
self.q_tensors = None
self.bits = bits
@ -128,7 +142,10 @@ class QuantLinear(nn.Module):
outfeatures = self.outfeatures
assert qweight.shape == (infeatures // 32 * self.bits, outfeatures)
assert infeatures % self.group_size == 0
assert qzeros.shape == (infeatures // self.group_size, outfeatures // 32 * self.bits)
assert qzeros.shape == (
infeatures // self.group_size,
outfeatures // 32 * self.bits,
)
assert scales.shape == (infeatures // self.group_size, outfeatures)
assert g_idx.shape == (infeatures,), f"{g_idx.shape}, {infeatures}"
@ -143,12 +160,10 @@ class QuantLinear(nn.Module):
"qweight": self.qweight,
"qzeros": self.qzeros,
"scales": self.scales,
"g_idx":self.g_idx
"g_idx": self.g_idx,
}
temp_dq = temp_dq.get_scratch_slice(self.temp_dq_size())
self.q_handle = ext_make_q_matrix(
self.q_tensors, temp_dq
)
self.q_handle = ext_make_q_matrix(self.q_tensors, temp_dq)
def forward(self, x, force_cuda=False):
output = ext_gemm_half_q_half(x, self.q_handle, self.outfeatures, force_cuda)
@ -179,11 +194,14 @@ class ExLlamaV2DeviceTensors:
self.scratch_bytes = scratch_bytes
def prepare(self):
self.scratch = torch.empty((self.scratch_bytes // 2,), dtype = torch.half, device = self.device)
self.scratch = torch.empty(
(self.scratch_bytes // 2,), dtype=torch.half, device=self.device
)
def get_scratch_slice(self, size_bytes):
if self.scratch is None: self.prepare()
if self.scratch is None:
self.prepare()
size_bytes = ((size_bytes + 127) // 128) * 128
size_half = size_bytes // 2

136
server/text_generation_server/utils/layers.py
View File

@ -35,7 +35,9 @@ HAS_EXLLAMA = False
CAN_EXLLAMA = major >= 8
V2 = os.getenv("EXLLAMA_VERSION", "2") == "2"
if V2 and int(os.getenv("WORLD_SIZE", "1")) > 1:
logger.warning("Disabling exllama v2 and using v1 instead because there are issues when sharding")
logger.warning(
"Disabling exllama v2 and using v1 instead because there are issues when sharding"
)
V2 = False
if os.getenv("DISABLE_EXLLAMA") == "True":
@ -43,14 +45,16 @@ if os.getenv("DISABLE_EXLLAMA") == "True":
elif CAN_EXLLAMA:
try:
if V2:
from text_generation_server.utils.gptq.exllamav2 import (QuantLinear as ExllamaQuantLinear,
from text_generation_server.utils.gptq.exllamav2 import (
QuantLinear as ExllamaQuantLinear,
create_exllama_buffers,
set_device,
)
HAS_EXLLAMA = "2"
else:
from text_generation_server.utils.gptq.exllama import (Ex4bitLinear as ExllamaQuantLinear,
from text_generation_server.utils.gptq.exllama import (
Ex4bitLinear as ExllamaQuantLinear,
create_exllama_buffers,
set_device,
)
@ -325,7 +329,9 @@ def get_linear(weight, bias, quantize):
)
if use_exllama:
linear = ExllamaQuantLinear(qweight, qzeros, scales, g_idx, bias, bits, groupsize)
linear = ExllamaQuantLinear(
qweight, qzeros, scales, g_idx, bias, bits, groupsize
)
else:
linear = QuantLinear(
qweight,
@ -533,7 +539,6 @@ try:
else:
dropout_layer_norm = None
class FastLayerNorm(nn.LayerNorm):
def forward(self, hidden_states, residual=None):
if hidden_states.shape[-1] > 8192 or IS_ROCM_SYSTEM:
@ -569,7 +574,6 @@ try:
return normed_hidden_states, residual
class FastRMSNorm(nn.Module):
def __init__(self, weight: torch.Tensor, eps: float):
super().__init__()
@ -601,7 +605,11 @@ try:
return self.weight * hidden_states, residual
elif IS_CUDA_SYSTEM:
# faster post attention rms norm
normed_hidden_states, res, *rest = dropout_layer_norm.dropout_add_ln_fwd(
(
normed_hidden_states,
res,
*rest,
) = dropout_layer_norm.dropout_add_ln_fwd(
hidden_states,
residual,
self.weight,
@ -638,7 +646,8 @@ try:
return out, residual
else:
raise ValueError(
"Your system seem to be not supported. Please check your install or open an issue at https://github.com/huggingface/text-generation-inference/issues with a clear reproduction.")
"Your system seem to be not supported. Please check your install or open an issue at https://github.com/huggingface/text-generation-inference/issues with a clear reproduction."
)
except ImportError:
pass
@ -650,14 +659,12 @@ try:
elif IS_ROCM_SYSTEM:
from vllm import pos_encoding_ops
def _create_inv_freq(dim, base, device):
inv_freq = 1.0 / (
base ** (torch.arange(0, dim, 2, device=device, dtype=torch.float32) / dim)
)
return inv_freq
def _get_rope_config(config):
if os.getenv("ROPE_SCALING", None) is not None:
rope_scaling = {
@ -667,7 +674,6 @@ try:
return rope_scaling
return getattr(config, "rope_scaling", None)
class PositionRotaryEmbedding(nn.Module):
def __init__(self, inv_freq, scaling_factor):
super().__init__()
@ -680,7 +686,13 @@ try:
self.scaling_factor = scaling_factor
self.dynamic_args = None
def forward(self, query: torch.Tensor, key: torch.Tensor, cos: torch.Tensor, sin: torch.Tensor):
def forward(
self,
query: torch.Tensor,
key: torch.Tensor,
cos: torch.Tensor,
sin: torch.Tensor,
):
# Such controlflows may add some overhead.
if IS_CUDA_SYSTEM:
rotary_dim = cos.shape[-1]
@ -700,17 +712,11 @@ try:
head_size = query.shape[-1]
# Inplace operation, updating query and key.
pos_encoding_ops.rotary_embedding(
query,
key,
head_size,
cos,
sin,
True
)
pos_encoding_ops.rotary_embedding(query, key, head_size, cos, sin, True)
else:
raise ValueError(
"Your system seem to be not supported. Please check your install or open an issue at https://github.com/huggingface/text-generation-inference/issues with a clear reproduction.")
"Your system seem to be not supported. Please check your install or open an issue at https://github.com/huggingface/text-generation-inference/issues with a clear reproduction."
)
@classmethod
def static(cls, config, dim, base, device):
@ -732,15 +738,16 @@ try:
elif rope_scaling["type"] == "yarn":
return YarnPositionRotaryEmbedding(
dim=2 * inv_freq.shape[0],
max_position_embeddings=rope_scaling["original_max_position_embeddings"],
max_position_embeddings=rope_scaling[
"original_max_position_embeddings"
],
base=10000.0,
device=inv_freq.device,
scaling_factor=scaling_factor,
extrapolation_factor=1,
attn_factor=1,
beta_fast=32,
beta_slow=1
beta_slow=1,
)
else:
raise NotImplementedError(
@ -773,15 +780,16 @@ try:
elif rope_scaling["type"] == "yarn":
return YarnPositionRotaryEmbedding(
dim=2 * inv_freq.shape[0],
max_position_embeddings=rope_scaling["original_max_position_embeddings"],
max_position_embeddings=rope_scaling[
"original_max_position_embeddings"
],
base=10000.0,
device=inv_freq.device,
scaling_factor=scaling_factor,
extrapolation_factor=1,
attn_factor=1,
beta_fast=32,
beta_slow=1
beta_slow=1,
)
else:
raise NotImplementedError(
@ -827,7 +835,6 @@ try:
# Note: this unsqueeze is not necessary on RoCm + VLLM ROPE implementation, but we leave it as is to avoid yet an other controlflow.
return cos.unsqueeze(1), sin.unsqueeze(1)
class DynamicPositionRotaryEmbedding(PositionRotaryEmbedding):
def __init__(self, dim, max_position_embeddings, base, device, scaling_factor):
inv_freq = _create_inv_freq(dim, base, device)
@ -861,24 +868,28 @@ try:
self._cos_cached = torch.cos(freqs).to(dtype)
self._sin_cached = torch.sin(freqs).to(dtype)
# Inverse dim formula to find dim based on number of rotations
import math
def find_correction_dim(num_rotations, dim, base=10000, max_position_embeddings=2048):
return (dim * math.log(max_position_embeddings / (num_rotations * 2 * math.pi))) / (2 * math.log(base))
def find_correction_dim(
num_rotations, dim, base=10000, max_position_embeddings=2048
):
return (
dim * math.log(max_position_embeddings / (num_rotations * 2 * math.pi))
) / (2 * math.log(base))
# Find dim range bounds based on rotations
def find_correction_range(low_rot, high_rot, dim, base=10000, max_position_embeddings=2048):
low = math.floor(find_correction_dim(
low_rot, dim, base, max_position_embeddings))
high = math.ceil(find_correction_dim(
high_rot, dim, base, max_position_embeddings))
def find_correction_range(
low_rot, high_rot, dim, base=10000, max_position_embeddings=2048
):
low = math.floor(
find_correction_dim(low_rot, dim, base, max_position_embeddings)
)
high = math.ceil(
find_correction_dim(high_rot, dim, base, max_position_embeddings)
)
return max(low, 0), min(high, dim - 1) # Clamp values just in case
def linear_ramp_mask(min, max, dim):
if min == max:
max += 0.001 # Prevent singularity
@ -887,16 +898,25 @@ try:
ramp_func = torch.clamp(linear_func, 0, 1)
return ramp_func
def get_mscale(scale=1):
if scale <= 1:
return 1.0
return 0.1 * math.log(scale) + 1.0
class YarnPositionRotaryEmbedding(PositionRotaryEmbedding):
def __init__(self, dim, max_position_embeddings, base, device, scaling_factor, *, extrapolation_factor,
attn_factor, beta_fast, beta_slow):
def __init__(
self,
dim,
max_position_embeddings,
base,
device,
scaling_factor,
*,
extrapolation_factor,
attn_factor,
beta_fast,
beta_slow,
):
inv_freq = _create_inv_freq(dim, base, device)
super().__init__(inv_freq, scaling_factor)
self.dim = dim
@ -906,8 +926,9 @@ try:
self.attn_factor = attn_factor
self.beta_fast = beta_fast
self.beta_slow = beta_slow
self.mscale = float(get_mscale(
self.scaling_factor) * self.attn_factor) # Get n-d magnitude scaling corrected for interpolation
self.mscale = float(
get_mscale(self.scaling_factor) * self.attn_factor
) # Get n-d magnitude scaling corrected for interpolation
def _update_cos_sin_cache(self, dtype, device, seqlen):
# Reset the tables if the sequence length has changed,
@ -923,15 +944,26 @@ try:
)
freqs = 1.0 / inv_freq_extrapolation
inv_freq_interpolation = 1.0 / (self.scaling_factor * freqs)
low, high = find_correction_range(self.beta_fast, self.beta_slow, self.dim, self.base,
self.max_position_embeddings)
inv_freq_mask = (1 - linear_ramp_mask(low, high, self.dim // 2).float().to(
device)) * self.extrapolation_factor # Get n-d rotational scaling corrected for extrapolation
inv_freq = inv_freq_interpolation * (1 - inv_freq_mask) + inv_freq_extrapolation * inv_freq_mask
low, high = find_correction_range(
self.beta_fast,
self.beta_slow,
self.dim,
self.base,
self.max_position_embeddings,
)
inv_freq_mask = (
1
- linear_ramp_mask(low, high, self.dim // 2).float().to(device)
) * self.extrapolation_factor # Get n-d rotational scaling corrected for extrapolation
inv_freq = (
inv_freq_interpolation * (1 - inv_freq_mask)
+ inv_freq_extrapolation * inv_freq_mask
)
self.inv_freq = inv_freq
self.mscale = float(get_mscale(
self.scaling_factor) * self.attn_factor) # Get n-d magnitude scaling corrected for interpolation
self.mscale = float(
get_mscale(self.scaling_factor) * self.attn_factor
) # Get n-d magnitude scaling corrected for interpolation
self._seq_len_cached = seqlen
t = torch.arange(seqlen, device=device, dtype=self.inv_freq.dtype)

28
server/text_generation_server/utils/medusa.py
View File

@ -2,6 +2,7 @@ import torch
from dataclasses import dataclass
from text_generation_server.utils.layers import TensorParallelHead, FastLinear
@dataclass
class Output:
logits: torch.FloatTensor = None
@ -11,7 +12,9 @@ class Output:
class ResBlock(torch.nn.Module):
def __init__(self, config, prefix, weights):
super().__init__()
self.linear = FastLinear.load(config, prefix=f"{prefix}.linear", weights=weights, bias=True)
self.linear = FastLinear.load(
config, prefix=f"{prefix}.linear", weights=weights, bias=True
)
self.act = torch.nn.SiLU()
def forward(self, x):
@ -19,15 +22,13 @@ class ResBlock(torch.nn.Module):
class MedusaModel(torch.nn.Module):
def __init__(
self,
config,
weights,
lm_head
):
def __init__(self, config, weights, lm_head):
super().__init__()
self.heads = torch.nn.ModuleList(
[MedusaHead(config, prefix=f"{i}", weights=weights) for i in range(config["medusa_num_heads"])]
[
MedusaHead(config, prefix=f"{i}", weights=weights)
for i in range(config["medusa_num_heads"])
]
)
self.lm_head = lm_head
@ -40,9 +41,16 @@ class MedusaModel(torch.nn.Module):
class MedusaHead(torch.nn.Module):
def __init__(self, config, prefix, weights):
super().__init__()
self.blocks = torch.nn.ModuleList([ResBlock(config, prefix=f"{prefix}.{i}", weights=weights) for i in range(config["medusa_num_layers"])])
self.blocks = torch.nn.ModuleList(
[
ResBlock(config, prefix=f"{prefix}.{i}", weights=weights)
for i in range(config["medusa_num_layers"])
]
)
n = len(self.blocks)
self.out = FastLinear.load(config, prefix=f"{prefix}.{n}", weights=weights, bias=False)
self.out = FastLinear.load(
config, prefix=f"{prefix}.{n}", weights=weights, bias=False
)
def forward(self, x):
for block in self.blocks:

17
server/text_generation_server/utils/paged_attention.py
View File

@ -7,11 +7,14 @@ from vllm import attention_ops
_PARTITION_SIZE = 512
def reshape_and_cache(key: torch.Tensor, value: torch.Tensor, key_cache: torch.Tensor, value_cache: torch.Tensor,
slots: torch.Tensor):
cache_ops.reshape_and_cache(
key, value, key_cache, value_cache, slots
)
def reshape_and_cache(
key: torch.Tensor,
value: torch.Tensor,
key_cache: torch.Tensor,
value_cache: torch.Tensor,
slots: torch.Tensor,
):
cache_ops.reshape_and_cache(key, value, key_cache, value_cache, slots)
def attention(
@ -45,9 +48,7 @@ def attention(
# value_cache => [num_blocks, num_heads, head_size, block_size]
block_size = value_cache.shape[3]
num_seqs, num_heads, head_size = query.shape
max_num_partitions = (
(max_s + _PARTITION_SIZE - 1) //
_PARTITION_SIZE)
max_num_partitions = (max_s + _PARTITION_SIZE - 1) // _PARTITION_SIZE
# NOTE(woosuk): We use a simple heuristic to decide whether to use
# PagedAttention V1 or V2. If the number of partitions is 1, we use
# V1 to avoid the overhead of reduction. Also, if the number of

4
server/text_generation_server/utils/peft.py
View File

@ -38,7 +38,9 @@ def download_and_unload_peft(model_id, revision, trust_remote_code):
os.makedirs(model_id, exist_ok=True)
cache_dir = model_id
logger.info(f"Saving the newly created merged model to {cache_dir}")
tokenizer = AutoTokenizer.from_pretrained(base_model_id, trust_remote_code=trust_remote_code)
tokenizer = AutoTokenizer.from_pretrained(
base_model_id, trust_remote_code=trust_remote_code
)
model.save_pretrained(cache_dir, safe_serialization=True)
model.config.save_pretrained(cache_dir)
tokenizer.save_pretrained(cache_dir)

5
server/text_generation_server/utils/speculate.py
View File

@ -1,12 +1,11 @@
SPECULATE = None
def get_speculate() -> int:
global SPECULATE
return SPECULATE
def set_speculate(speculate: int):
global SPECULATE
SPECULATE = speculate

34
server/text_generation_server/utils/tokens.py
View File

@ -16,6 +16,7 @@ from text_generation_server.utils.logits_process import (
from text_generation_server.utils.watermark import WatermarkLogitsProcessor
from transformers import PreTrainedTokenizerBase, RepetitionPenaltyLogitsProcessor
class NextTokenChooser:
def __init__(
self,
@ -145,7 +146,14 @@ class StoppingCriteria:
pb.ignore_eos_token,
)
def create_n_gram_speculation(input_ids: torch.Tensor, next_ids: torch.Tensor, accepted_ids: torch.Tensor, speculate: int, verbose: bool):
def create_n_gram_speculation(
input_ids: torch.Tensor,
next_ids: torch.Tensor,
accepted_ids: torch.Tensor,
speculate: int,
verbose: bool,
):
# Very trivial approach, find first match in the string.
# This is much less refined than actual n-gram but seems to work
# relatively OK in grounded mode and is by far much faster with
@ -154,12 +162,15 @@ def create_n_gram_speculation(input_ids: torch.Tensor, next_ids: torch.Tensor, a
device = input_ids.device
seeds = next_ids[accepted_ids.cumsum(dim=-1) - 1]
indices = (input_ids == seeds.unsqueeze(-1)).max(dim=1).indices + 1
all_indices = indices.unsqueeze(-1).expand(B, speculate) + torch.arange(speculate, device=device)
all_indices = indices.unsqueeze(-1).expand(B, speculate) + torch.arange(
speculate, device=device
)
all_indices = torch.clamp(all_indices, max=input_ids.shape[1] - 1)
speculative_ids = input_ids.gather(dim=-1, index=all_indices)
return speculative_ids
class HeterogeneousNextTokenChooser:
def __init__(
self,
@ -228,7 +239,15 @@ class HeterogeneousNextTokenChooser:
self.dtype = dtype
self.device = device
def __call__(self, input_ids: torch.Tensor, scores: torch.Tensor, speculate: int, speculated_ids: Optional[torch.Tensor] = None, speculative_scores: Optional[torch.Tensor] = None, verbose=False):
def __call__(
self,
input_ids: torch.Tensor,
scores: torch.Tensor,
speculate: int,
speculated_ids: Optional[torch.Tensor] = None,
speculative_scores: Optional[torch.Tensor] = None,
verbose=False,
):
if speculated_ids is not None:
B = scores.shape[0] // (speculated_ids.shape[1] + 1)
S = speculated_ids.shape[1] + 1
@ -249,7 +268,6 @@ class HeterogeneousNextTokenChooser:
for warper in self.warpers:
_scores = warper(input_ids, _scores)
_next_ids = self.choice(_scores)
scores[:, j] = _scores
next_ids[:, j] = _next_ids
@ -278,7 +296,9 @@ class HeterogeneousNextTokenChooser:
break
accepted_ids.append(accepted)
accepted_ids = torch.tensor(accepted_ids, device=input_ids.device, dtype=input_ids.dtype)
accepted_ids = torch.tensor(
accepted_ids, device=input_ids.device, dtype=input_ids.dtype
)
next_ids = next_ids[indices]
scores = scores[indices]
indices = torch.arange(B, device=input_ids.device) * S
@ -296,7 +316,9 @@ class HeterogeneousNextTokenChooser:
speculative_ids = Greedy()(speculative_scores)
else:
# n-gram
speculative_ids = create_n_gram_speculation(input_ids, next_ids, accepted_ids, speculate, verbose)
speculative_ids = create_n_gram_speculation(
input_ids, next_ids, accepted_ids, speculate, verbose
)
else:
speculative_ids = None

3
server/text_generation_server/utils/weights.py
View File

@ -16,7 +16,7 @@ class Weights:
dtype,
process_group,
aliases: Optional[Dict[str, List[str]]] = None,
prefix: Optional[str] = None
prefix: Optional[str] = None,
):
routing = {}
for filename in filenames:
@ -213,6 +213,7 @@ class Weights:
bits, groupsize = self._get_gptq_params()
from text_generation_server.utils.layers import HAS_EXLLAMA
use_exllama = bits == 4 and HAS_EXLLAMA and quantize == "gptq"
weight = (qweight, qzeros, scales, g_idx, bits, groupsize, use_exllama)
else:

4
update_doc.py
View File

@ -21,7 +21,7 @@ def main():
block = []
for line in lines:
if line.startswith(" -") or line.startswith(" -"):
rendered_block = '\n'.join(block)
rendered_block = "\n".join(block)
if header:
final_doc += f"## {header}\n```shell\n{rendered_block}\n```\n"
else:
@ -36,7 +36,7 @@ def main():
block.append(line)
rendered_block = '\n'.join(block)
rendered_block = "\n".join(block)
final_doc += f"## {header}\n```shell\n{rendered_block}\n```\n"
block = []